FlowDiagram
UML: sequence, class & stateMermaid

Kubernetes pod lifecycle state machine template

Shows a Kubernetes pod moving through Pending, ContainerCreating, Running, CrashLoopBackOff, Succeeded, Failed and Terminating; used by DevOps and platform engineers debugging workloads. This state machine has 10 states and 16 transitions, triggered by events such as “node assigned”, “insufficient resources”, “cluster scaled up”.

Open in the editor →
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  • Fully editable shapes and connectors, not a screenshot
  • Export PNG, SVG or PDF, or share it as a link
  • Private: the diagram never leaves your browser

States in this state machine

  • Pending
  • Scheduled
  • Unschedulable
  • Container Creating
  • Running
  • Image Pull Back Off
  • Crash Loop Back Off
  • Succeeded
  • Failed
  • Terminating

How to use this state diagram template

  1. Click Open in the editor. The state diagram opens on a new page in FlowDiagram — nothing is uploaded and there is no sign-up.
  2. Rename, add or delete shapes and drag them where you want; connectors stay attached as things move.
  3. Drop in vendor logos from the library — 1,160 of them, including every AWS, Azure and Google Cloud service icon — or restyle it with the colour and theme controls.
  4. Prefer text? Edit the Mermaid source below and paste it in through ☰ → Import diagram (see the Mermaid editor); it imports as an editable diagram.
  5. Export to PNG, SVG or PDF, or press Ctrl+L for a link that carries the whole diagram.

Mermaid source

The whole template is the text below. Paste it into FlowDiagram, keep it in Git next to the code it describes, or hand it to an AI assistant to extend.

stateDiagram-v2
  [*] --> Pending
  Pending --> Scheduled : node assigned
  Pending --> Unschedulable : insufficient resources
  Unschedulable --> Pending : cluster scaled up
  Scheduled --> ContainerCreating : image pull started
  ContainerCreating --> Running : containers started
  ContainerCreating --> ImagePullBackOff : pull failed
  ImagePullBackOff --> ContainerCreating : retry pull
  Running --> CrashLoopBackOff : container keeps exiting
  CrashLoopBackOff --> Running : restart succeeds
  Running --> Succeeded : all containers exit 0
  Running --> Failed : exit non-zero, restartPolicy Never
  Running --> Terminating : deleted or evicted
  Terminating --> [*]
  Succeeded --> [*]
  Failed --> [*]

Related: Mermaid editor · All uml: sequence, class & state templates · All 521 templates